
<table style="text-align:center"><caption><strong>National leaders</strong></caption>
<tr><td colspan="7" style="border-bottom: 1px solid black"></td></tr><tr><td style="text-align:left"></td><td colspan="3">Sentiment of integration references</td><td colspan="3">Complexity of integration references</td></tr>
<tr><td style="text-align:left"></td><td>(1)</td><td>(2)</td><td>(3)</td><td>(4)</td><td>(5)</td><td>(6)</td></tr>
<tr><td colspan="7" style="border-bottom: 1px solid black"></td></tr><tr><td style="text-align:left">Public Euroscepticism</td><td>-0.063<sup>**</sup></td><td>-0.060<sup>**</sup></td><td>-0.029</td><td>-0.164<sup>***</sup></td><td>-0.164<sup>***</sup></td><td>-0.069<sup>**</sup></td></tr>
<tr><td style="text-align:left"></td><td>(0.022)</td><td>(0.022)</td><td>(0.024)</td><td>(0.024)</td><td>(0.024)</td><td>(0.026)</td></tr>
<tr><td style="text-align:left">Eurosceptic party strength</td><td>-0.038</td><td>-0.038</td><td>-0.061<sup>*</sup></td><td>0.004</td><td>-0.019</td><td>-0.088<sup>**</sup></td></tr>
<tr><td style="text-align:left"></td><td>(0.026)</td><td>(0.029)</td><td>(0.030)</td><td>(0.028)</td><td>(0.032)</td><td>(0.033)</td></tr>
<tr><td style="text-align:left">Public Euroscepticism (exp)</td><td></td><td>-0.163<sup>*</sup></td><td>-0.244<sup>**</sup></td><td></td><td>0.128</td><td>-0.115</td></tr>
<tr><td style="text-align:left"></td><td></td><td>(0.073)</td><td>(0.078)</td><td></td><td>(0.079)</td><td>(0.085)</td></tr>
<tr><td style="text-align:left">Eurosceptic party strength (exp)</td><td></td><td>-0.0003</td><td>-0.018</td><td></td><td>0.033</td><td>-0.019</td></tr>
<tr><td style="text-align:left"></td><td></td><td>(0.019)</td><td>(0.019)</td><td></td><td>(0.021)</td><td>(0.022)</td></tr>
<tr><td style="text-align:left">Public x Partisan Euroscept.</td><td></td><td></td><td>0.068<sup>**</sup></td><td></td><td></td><td>0.205<sup>***</sup></td></tr>
<tr><td style="text-align:left"></td><td></td><td></td><td>(0.023)</td><td></td><td></td><td>(0.025)</td></tr>
<tr><td colspan="7" style="border-bottom: 1px dashed black">
<tr><td style="text-align:left">Party EU position</td><td>-0.124<sup>***</sup></td><td>-0.133<sup>***</sup></td><td>-0.107<sup>***</sup></td><td>0.007</td><td>-0.004</td><td>0.074<sup>*</sup></td></tr>
<tr><td style="text-align:left"></td><td>(0.028)</td><td>(0.030)</td><td>(0.029)</td><td>(0.032)</td><td>(0.035)</td><td>(0.036)</td></tr>
<tr><td style="text-align:left">EU trade dependence</td><td>0.150<sup>***</sup></td><td>0.150<sup>***</sup></td><td>0.168<sup>***</sup></td><td>0.070<sup>*</sup></td><td>0.077<sup>**</sup></td><td>0.132<sup>***</sup></td></tr>
<tr><td style="text-align:left"></td><td>(0.023)</td><td>(0.023)</td><td>(0.022)</td><td>(0.028)</td><td>(0.028)</td><td>(0.028)</td></tr>
<tr><td style="text-align:left">Net Contribution</td><td>0.058<sup>*</sup></td><td>0.056<sup>*</sup></td><td>0.075<sup>**</sup></td><td>-0.262<sup>***</sup></td><td>-0.260<sup>***</sup></td><td>-0.201<sup>***</sup></td></tr>
<tr><td style="text-align:left"></td><td>(0.024)</td><td>(0.024)</td><td>(0.025)</td><td>(0.027)</td><td>(0.027)</td><td>(0.027)</td></tr>
<tr><td style="text-align:left">Eurozone Bond Spread</td><td>0.033</td><td>0.038<sup>*</sup></td><td>0.044<sup>*</sup></td><td>0.009</td><td>0.005</td><td>0.022</td></tr>
<tr><td style="text-align:left"></td><td>(0.019)</td><td>(0.019)</td><td>(0.019)</td><td>(0.022)</td><td>(0.022)</td><td>(0.022)</td></tr>
<tr><td style="text-align:left">CONSTANT</td><td>-0.005</td><td>-0.017</td><td>-0.054<sup>*</sup></td><td>-0.012</td><td>-0.005</td><td>-0.117<sup>***</sup></td></tr>
<tr><td style="text-align:left"></td><td>(0.017)</td><td>(0.018)</td><td>(0.022)</td><td>(0.018)</td><td>(0.019)</td><td>(0.023)</td></tr>
<tr><td colspan="7" style="border-bottom: 1px solid black">
<tr><td style="text-align:left"><em>Observations</em></td><td>2,809</td><td>2,809</td><td>2,809</td><td>2,809</td><td>2,809</td><td>2,809</td></tr>
<tr><td style="text-align:left"><em>R-squared</em></td><td>0.029</td><td>0.030</td><td>0.032</td><td>0.143</td><td>0.144</td><td>0.162</td></tr>
<tr><td style="text-align:left"><em>Adjusted R-squared</em></td><td>0.027</td><td>0.027</td><td>0.029</td><td>0.141</td><td>0.142</td><td>0.159</td></tr>
<tr><td style="text-align:left"><em>Residual standard error</em></td><td>0.974 (df = 2802)</td><td>0.973 (df = 2800)</td><td>0.972 (df = 2799)</td><td>0.910 (df = 2802)</td><td>0.910 (df = 2800)</td><td>0.900 (df = 2799)</td></tr>
<tr><td style="text-align:left"><em>F statistic</em></td><td>13.913<sup>***</sup> (df = 6; 2802)</td><td>10.901<sup>***</sup> (df = 8; 2800)</td><td>10.337<sup>***</sup> (df = 9; 2799)</td><td>77.638<sup>***</sup> (df = 6; 2802)</td><td>58.941<sup>***</sup> (df = 8; 2800)</td><td>60.084<sup>***</sup> (df = 9; 2799)</td></tr>
<tr><td colspan="7" style="border-bottom: 1px solid black"></td></tr><tr><td style="text-align:left"><em>Notes:</em></td><td colspan="6" style="text-align:left">Standardized coefficients, robust standard errors in parentheses. *** p<0.001, ** p<0.01, * p<0.05</td></tr>
</table>
